On Thu, Jul 21, 2016 at 08:41:04PM -0700, Bryan Vyhmeister wrote: > On Fri, Jul 22, 2016 at 01:25:58PM +1000, Jonathan Gray wrote: > > There is kernel support for TAHITI/PITCAIRN/CAPE VERDE southern > > islands but no userland acceleration as both 2d and 3d acceleration > > require LLVM. > > > > The marketing names are a mess, see > > https://www.x.org/wiki/RadeonFeature/ > > to decode them. > > Thanks for the clarification. That makes sense. Sounds like the better > option is to wait for Skylake inteldrm(4) and use efifb(4) and wsfb(4) > for now. Does Skylake inteldrm(4) require LLVM or anything like that?
There is no kernel support for skylake and it will require firmware. https://01.org/linuxgraphics/intel-linux-graphics-firmwares The intel code in Mesa does not use gallium or LLVM. Using efifb with a 4k display would likely be horribly slow due to the high number of pixels to push.
